Okay so I've read this entire thing and for me and my eight it appears setting antilag start and stop to the same low number disables lean spool.

However, If I like lean spool but simply don't want it to run to 4250 rpm can I simply change it to 3500 rpm and call it a day?

 

The "Anti-lag disable" item in the definition is not correct. Its actually an AFR value for the lean spool program. It looks like an RPM because the value from the ROM has been mutiplied by 256 or some such number. Anyhow, you don't want to change that item. The lean spool disable is at a different location in the ROM. I think its 1684, but I'm not positive, and I don't have my PC laptop with me. Someone else should be able to give you the correct location.

 

Well that is good to know.

 

For the 03-04 VIII's it is 1681 and 1685 for the 1 byte code. This is enable/disable in that order. The 05 is the same as the IX and is 1281/1285.

 

here's another helpful tip for ya'll...to conver the uint8 to an actual rpm value so you dont have to manually calculate it, input this into your evoscan evoxbase.xml file:

<scaling name="IPW Scale" units="rpm" toexpr="x*31.25" frexpr="x/31.25" format="%.2f" min="0" max="8000" inc="31.25" storagetype="uint8" endian="little"/>

you'll need to reference IPW Scale instead of UINT8 after for each addy for the lean spool

 

For those of you that have disabled it...... do you still feel there is a flat spot in the RPM band?

 

will this code work with mitsulogger? or any way to do this with mitsulogger?

 

Hell yes it's slower with it disabled. I immediatley leaned spool back to where the lambda was (more gradual change from stoich to 12.0), but this time from my AFRmaps., which is the point for it's disable

 

Not following..... Are you saying simply turning it off makes it slower but if you retune for a leaner spool manually you recover all the lost power?

 

sorry to ask again but no one answered it yet, will this code work with mitsulogger or only works with evoscan?

 

This is all ECUflash for the ROM. This isnt a loggable (well I spose it could be) feature that you turn on or off, as I understand your question. This is a fuel function just like any of the rest of the configurable settings.

JB

 

If I use the first method outlined by Pd1 and I simply want to define the lean spool tables WITHOUT disabling lean spool for now, what should I do? Can that be done.

 

Yes I guess it's power lost ultimately, the spool for me is much slower when rich, what it does do is provide more control over your fueling with the afr maps

 

Ok, I defined the leanspoolenable and leanspooldisable tables in the Rom. The leanspoolenable has a number 80 in it and disable a number 224. What RPM do these numbers correspond to. I do not want to enter 48 before I know what these numbers mean. Are these numbers 2500 rpm and 4531 rpm?

If I change the number to 48 for both are ALL the the roms number 88590015 affected or only this Rom?

 

The factory lean spool start/stop RPM value are 2500/7000. Most people simply change the stop value from 7000 to 2500 rpm. Since you haven't added the scaling, you'd change 224 to 80.